import java.util.*;
public class KeySet {
public static void main(String[] args) {
// TODO Auto-generated method stub
Hashtable<String, Integer> lhm1 = new Hashtable<>();
lhm1.put("One", 1);
lhm1.put("Two", 2);
lhm1.put("Three", 3);
lhm1.put("Four", 4);
lhm1.put("Five", 5);
lhm1.put("Six", 6);
lhm1.put("Seven", 7);
lhm1.put("Eight", 8);
Set set = lhm1.keySet();
System.out.print("All-Key : "+set);
}
}
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